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PROPERTY AND EQUIPMENT (Tables)
9 Months Ended
Sep. 30, 2020
Property, Plant and Equipment [Abstract]  
Schedule of Property and Equipment
The major categories of property and equipment and related accumulated depletion, depreciation, amortization ("DD&A") and impairment as of September 30, 2020 and December 31, 2019 are as follows:
September 30, 2020December 31, 2019
(In thousands)
Oil and natural gas properties$10,786,305 $10,595,735 
Accumulated DD&A and impairment(8,735,750)(7,191,957)
Oil and natural gas properties, net2,050,555 3,403,778 
Other depreciable property and equipment91,101 91,198 
Land4,820 5,521 
Accumulated DD&A(43,954)(36,703)
Other property and equipment, net51,967 60,016 
Property and equipment, net$2,102,522 $3,463,794 
Schedule of Non-Producing Properties Excluded from Amortization by Area
The following table summarizes the Company’s unevaluated properties excluded from amortization by area at September 30, 2020:
September 30, 2020
(In thousands)
Utica$850,643 
SCOOP674,280 
Other2,018 
$1,526,941 
Schedule of Asset Retirement Obligation
A reconciliation of the Company’s asset retirement obligation for the nine months ended September 30, 2020 and 2019 is as follows:
September 30, 2020September 30, 2019
(In thousands)
Asset retirement obligation, beginning of period$60,355 $79,952 
Liabilities incurred2,343 5,769 
Liabilities settled— (117)
Liabilities removed due to divestitures(2,033)(30,035)
Accretion expense2,270 3,173 
Revisions in estimated cash flows— 1,077 
Asset retirement obligation as of end of period$62,935 $59,819